Facility and process for measuring the difference in diameter of two train wheels attached to the same axle

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(11)

EP 1 055 900 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	16.01.2002 Bulletin 2002/03

(43)	Date of publication A2:
	29.11.2000 Bulletin 2000/48

(21)	Application number: 00500082.3

(22)	Date of filing: 03.05.2000

(51)	International Patent Classification (IPC)⁷: G01B 7/12

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

18.05.1999 ES 9901063

(71)	Applicant: PATENTES TALGO, S.A.
	28014 Madrid (ES)

(72)	Inventors:
	Lopez Gomez, José Luis 28014 Madrid (ES) Sanchez Revuelta, Angel Luis 28014 Madrid (ES) Gomez Gomez, Carlos Javier 28014 Madrid (ES)

(74)	Representative: Diez de Rivera de Elzaburu, Alfonso et al
	Elzaburu S.A., Miguel Angel, 21 28010 Madrid 28010 Madrid (ES)

(54)	Facility and process for measuring the difference in diameter of two train wheels attached to the same axle

(57) A facility and a process for measuring the difference in diameter of train wheels attached to the same axle. A point-rail segment (2) on each rail of track is provided between main rail segments (1), said point-rail segments (2) being staggered with respect to one another in the direction of the track, so that when one of the attached wheels in said axle moves upon a segment (2) while its lateral creeping is prevented, its tendency to slip is translated into a movement of said segment (2) between said segments (1) which is proportional to the difference between said wheel diameters. Compensation means (6) are provided in order to maintain said segments (2) in position, as well as transducers (7) to transform the movement of each one of said segments (2) into an electrical signal which is fed to a data processing equipment (D,P).

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